How are these numbers calculated?

Big Games

How we did last week and who we should root for this week.   Explain

Week of 11/4100.0*Chance in playoffs100.0*Average seed
Lew 151.04 Ray 106.16 -17.4
-1.2
Eddie 63.96 Westport 57.96 +1.1
+0.1
Alex Wax 85.84 Helfman 83.58 -0.7
Bukantz 102.2 Dammer 110.2 -0.6
Koop/Rubin 116.5 Hayons 43.86 +0.4
If winner is:HomeAway
Week of 11/11100.0*Chance in playoffs100.0*Average seed
Bukantz vs Ray-17.2+17.3
-1.2+1.2
Eddie vs Kochen+2.3-2.3
+0.1-0.1
Lew vs Alex Wax+1.3-1.3
+0.1-0.1
Koop/Rubin vs Dammer+0.1-0.1
Helfman vs Kunal-0.1+0.1
Westport vs Hayons-0.1+0.1

What If

Chances based on how well the Ray finish out the regular season.   Explain

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
84-0In193834810605,113
73-197.9%010123430112002,408,017
62-220.70003183930101003,612,320
51-30.000625432432,408,793
40-4Out075736603,685
Total:38.5%1559910151310121039,637,928
Games Above .500
Chance Will Make Playoffs